Species Pseudomonas halophila

Name: Pseudomonas halophila Fendrich 1989

Category: Species

Proposed as: sp. nov.

Etymology: ha.lo’phi.la. Gr. masc. n. hals (gen. halos), salt; N.L. fem. adj. suff. -phila, friend, loving; from Gr. fem. adj. philê, loving; N.L. fem. adj. halophila, salt-loving

Gender: feminine

Type strain: CECT 5286; DSM 3051; II; III 65

See detailed strain information at

Effective publication: Fendrich C. Halovibrio variabilis gen. nov. sp. nov., Pseudomonas halophila sp. nov. and a new halophilic aerobic coccoid Eubacterium from Great Salt Lake, Utah, USA. Syst. Appl. Microbiol. 1988; 11:3643.

IJSEM list: Anonymous. Validation list no. 29. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1989; 39:205-206.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Halomonas utahensis Sorokin and Tindall 2006

Risk group: 1

Synonyms:

Name	Kind
Halomonas utahensis Sorokin and Tindall 2006	homotypic synonym, validly published under the ICNP

Notes:
- Pseudomonas halophila is the correct name if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Pseudomonas.
- The type strain is DSM 3051, not DSM 3050 as published on Validation List no. 29 and in the effective publication (Opinion 93., Judicial Commission of the International Committee on Systematics of Prokaryotes, IJSEM 64:3588-3589). Publication: Judicial Commission. Judicial Opinion No. 93. Int J Syst Evol Microbiol 2014; 64:3588-3589.
- According to Anzai et al., Pseudomonas halophila Fendrich 1989 does not belong to the genus Pseudomonas sensu stricto. Publication: Anzai Y, Kim H, Park JY, Wakabayashi H, Oyaizu H. Phylogenetic affiliation of the pseudomonads based on 16S rRNA sequence. Int J Syst Evol Microbiol 2000; 50:1563-1589.
- Based on data collected, Sorokin and Tindall 2006 [2] conclude that DSM 3051 is clearly a member of the genus Halomonas, and that DSM 3050 clearly is not a member of the genus Halomonas. In a Request for an Opinion, Sorokin and Tindall 2006 [2] propose that the following steps should be undertaken by the Judicial Commission. (i) The type of the name Halovibrio variabilis Fendrich 1989 is to be regarded as DSM 3050, not as currently published DSM 3051. (ii) The circumscription of the genus Halovibrio should be emended as proposed by Sorokin et al. 2006. (iii) This would also have the effect of placing members of the genus Halovibrio outside of the genus Halomonas and would mean that the names Halovibrio variabilis and Halomonas variabilis cannot be treated as synonyms. (iv) DSM 3051 should be recognized as the type strain of Pseudomonas halophila. (v) The species name Halomonas variabilis (Fendrich 1989) Dobson and Franzmann 1996 is to be rejected, because it was created in the belief that Halovibrio variabilis was correctly represented by DSM 3051. (vi) Recognition of DSM 3051 as the type strain of Pseudomonas halophila would mean that data collected for this strain indicate that it should be properly placed (at least at present) within the genus Halomonas. However, the name Halomonas halophila already exists [Halomonas halophila (Quesada et al. 1984) Dobson and Franzmann 1996] and it would be necessary to create a new name (nomen novum) to reflect this taxonomic interpretation. Sorokin and Tindall propose the combination "Halomonas utahensis" nom. nov. (homotypic synonym Pseudomonas halophila) to accommodate strain DSM 3051, with the current authors (and date) being the authority of the name. The type strain is DSM 3051. (vii) Given the special circumstances under which the data were collected and published, Sorokin and Tindall 2006 also request that the Judicial Commission recognize that the species name Halovibrio denitrificans was validly published by Sorokin et al. 2006. Publication: Sorokin DY, Tindall BJ. The status of the genus name Halovibrio Fendrich 1989 and the identity of the strains Pseudomonas halophila DSM 3050 and Halomonas variabilis DSM 3051. Request for an opinion. Int J Syst Evol Microbiol 2006; 56:487-489.
- During the course of studies on halophilic, Gram-negative bacteria, a comparison of two strains of halophilic bacteria, Pseudomonas halophila DSM 3050 (type strain of the species) and Halomonas variabilis (basonym Halovibrio variabilis) DSM 3051 (type strain of the species) demonstrated that the characteristics of strain DSM 3050 corresponded to the original description of Halomonas variabilis (basonym Halovibrio variabilis) and those of DSM 3051 to Pseudomonas halophila [1]. Publication: Sorokin DY, Tourova TP, Galinski EA, Belloch C, Tindall BJ. Extremely halophilic denitrifying bacteria from hypersaline inland lakes, Halovibrio denitrificans sp. nov. and Halospina denitrificans gen. nov., sp. nov., and evidence that the genus name Halovibrio Fendrich 1989 with the type species Halovibrio variabilis should be associated with DSM 3050. Int J Syst Evol Microbiol 2006; 56:379-388.

Parent taxon: Pseudomonas Migula 1894 (Approved Lists 1980)

Assigned by: Fendrich C. Halovibrio variabilis gen. nov. sp. nov., Pseudomonas halophila sp. nov. and a new halophilic aerobic coccoid Eubacterium from Great Salt Lake, Utah, USA. Syst. Appl. Microbiol. 1988; 11:3643.

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Record number: 780033

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